Finding the Fourth Proportional to 10,662.40, 15,993.76 and 4,088.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.40 : 15,993.76 = 4,088.96 : x
2. Step 2: Convert to fraction form
   10,662.40/15,993.76 = 4,088.96/x
3. Step 3: Cross multiply
   10,662.40x = 15,993.76 × 4,088.96
4. Step 4: Simplify right side
   10,662.40x = 65,397,844.89
5. Step 5: Solve for x
   x = 65,397,844.89/10,662.40
6. Step 6: Final answer
   x = 6,133.50